Rational use of drugs to protect natural enemies
1. Master the natural enemies of pests Grasp the types and occurrences of pests and natural enemies, and avoid applying the drugs during the prosperous and sensitive periods of natural enemies. There are many types of natural enemies. According to their feeding methods, they can be divided into: (1) predatory natural enemies such as grasshoppers, ladybugs, insectivores, carapace, insectivores, scorpion flies, carnivores, spiders, Birds, frogs, etc. (2) Parasitic natural enemies such as parasitic wasps, parasitic flies, etc. Different natural enemies have different sensitivity periods for pesticides. Natural enemies such as spiders and parasitic wasps are generally more resistant to antibiotics during the flood season. The application time should be chosen during the peak period, and try to avoid the incubation period and quantity of some dominant species. Application during the surge period, the peak of emergence, the larval metaplasia or the initial stage; the frogs should avoid the application of the flood season and the young frog period.
2. Create an environment Create environmental conditions for habitat, migration and wintering of natural enemies of pests, and increase the number of natural enemies. The number of natural enemies is subject to change due to seasonal and crop replacement. Therefore, an ecological environment suitable for the survival, migration and development of natural enemies should be created to protect natural enemies. For example, when crops are laid out, high-slung stalk crop intercropping should be carried out to avoid simplification; in winter, natural enemies provide turf, clods, branches and other wintering places; in spring, artificial enemies can help natural enemies migrate to the target fields.
3, rational use of drugs to protect natural enemies suitable pesticide varieties can protect natural enemies, some systemic, selective or biological pesticides can be used to harm small natural enemies; choose appropriate pesticide formulations and application methods, try to avoid contact with natural enemies, such as Use granules, change spray, spray powder for seed dressing, stalking or soil treatment; etc.; to reduce the dosage appropriately, pick up the harmful organisms that occur in the spotting, relax the control indicators, and try not to take medicine without drugs. Give full play to the role of natural enemies.
4. Comprehensive prevention and control For vegetable pests and diseases, comprehensive prevention and control methods should be adopted to protect natural enemies, such as using yellow boards to trap aphids and white meal; use water-saving cultivation in protected areas to enhance ventilation, reduce humidity and reduce fungal diseases. Use low-toxic, low-residue pesticides when using pesticides. Try to use natural enemies to kill pests.
Polishing Machine
The abrasive polishing uses abrasive cloth strips, sisal and abrasive rolls as abrasives to sharpen the edge of the workpiece, the surface burrs and the edge of the workpiece after painting; the function is complete, the processing range is wide, mainly used for the door plate and the bottom plate. Paint polishing, including solid wood doors, composite doors, sticker doors, cabinet doors, wardrobe doors, and other door panels, such as PU, paint panels, primer panels, polishing of white workpieces can be used. It can replace the polishing worker to complete the work efficiently.
Main Features
Specification & installation
machine configuration
4 discs, 2 straight rollers, steel plated countertops, plain gauze strips (6 lanes)
Grinding roller support material
New anti-static sisal silk
Abrasive cloth strip: ordinary sand cloth strip (single side)
motor
Pure copper core GB motor
Electrical configuration
Qingdao Hailing Modular Machine Inverter, Chint Contactor, Chint Relay, Delixi Transformer,
Delixi phase sequence protector, LED lighting
We distributes and wholesales various brands of Bonded Abrasives , Abrasive Sanding Disc, Grinding Wheels , Flap Wheels , Flap Disc Backing Pad, Flap Disc Adhesive, and Surface Conditioning Product etc, and enjoy a high position among consumers.
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Zhengzhou Jiading Abrasive Manufacturing Co.,Ltd , https://www.jd-abrasives.com